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Stateful Container Migration in Geo-Distributed Environments

Abstract : Container migration is an essential functionality in large-scale geo-distributed platforms such as fog computing infrastructures. Contrary to migration within a single data center, long-distance migration requires that the container's disk state should be migrated together with the container itself. However, this state may be arbitrarily large, so its transfer may create long periods of unavailability for the container. We propose to exploit the layered structure provided by the OverlayFS file system to transparently snapshot the volumes' contents and transfer them prior to the actual container migration. We implemented this mechanism within Kubernetes. Our evaluations based on a real fog computing test-bed show that our techniques reduce the container's downtime during migration by a factor 4 compared to a baseline with no volume checkpoint.
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https://hal.inria.fr/hal-02963913
Contributor : Guillaume Pierre <>
Submitted on : Monday, October 12, 2020 - 8:03:56 AM
Last modification on : Wednesday, October 14, 2020 - 3:12:19 AM

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  • HAL Id : hal-02963913, version 1

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Paulo Souza Junior, Daniele Miorandi, Guillaume Pierre. Stateful Container Migration in Geo-Distributed Environments. CloudCom 2020 - 12th IEEE International Conference on Cloud Computing Technology and Science, Dec 2020, Bangkok, Thailand. ⟨hal-02963913⟩

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